Alternating Current Field Measurement (ACFM) is an advanced electromagnetic technique used primarily for detecting and sizing surface-breaking cracks without requiring the application of a liquid penetrant or magnetic particles. ACFM can provide valuable information regarding crack location, length and depth and is particularly useful on welds and structures where surface condition, coatings or operational requirements make conventional surface inspection methods less practical. The technique provides clients with a flexible inspection solution that can improve productivity while delivering quantitative information for engineering assessment.
